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Astronomers Confirm Faintest Early-Universe Galaxy ever seen

Composite image of the galaxy cluster from three different filters on the Hubble Space Telescope. The wave charts (insets at left) show spectra of the multiply imaged systems. The fact that they share peaks at the same wavelength shows that they belong to the same source. At bottom right, the Keck I and Keck II Telescopes at Hawaii's the W. M. Keck Observatory. Credit: BRADAC/HST/W. M. Keck Observatory

Composite image of the galaxy cluster from three different filters on the Hubble Space Telescope. The wave charts (insets at left) show spectra of the multiply imaged systems. The fact that they share peaks at the same wavelength shows that they belong to the same source. At bottom right, the Keck I and Keck II Telescopes at Hawaii’s the W. M. Keck Observatory. Credit: BRADAC/HST/W. M. Keck Observatory

Discovery could help explain how ‘cosmic dark ages’ ended. Using the W. M. Keck Observatory on the summit on Mauna Kea in Hawaii, the researchers detected the galaxy as it was 13 billion years ago. The researchers made the discovery using gravitational lensing to see the incredibly faint object, which was born just after the Big Bang...

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